Machine for discharging coke from ovens



No. 753,142. I PATENTED FEB, 23,1904. J. KERSHGENS.

MACHINE FOB. DISCHARGING COKE PROM OVENS. APPLIOATION FILED mm. so, 1903.

H0 MODEL. 6 SHEETS-SHEET 1 Wifgesscs Mm PATENTED FEB. 23, 1904.

J. KERSHGENS. MACHINE FOB. DISGHARGING COKE PROM OVENS.

T ON 30, 1903. NO MODEL. APYLIUL I FILED JUNE 6 SHEETS-SHEET 2 w W M CFILTIL BU BU 1% 753,142. PATENTED FEB. 23, 1904.

J. KERSHGENS.

MACHINE FOR DISGHARGING COKE FROM OVENS.

APILIOATIOH FILED JUNE 03- no mount. 6 sums-anama.

No. 753,142. PATENTED FEB. 23, 1904.

J. KERSHGENS.

MACHINE FOR DISCHARGING COKE FROM OVENS. APPLIOATION FILED mm: ab. 1903.

K0 MODEL I 6 SEEETSSHEETI4.

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@Aliomggys PATENTED FEB. 23, 1904.

. J. KERSHGENS, MACHINE FOR DISGHARGING COKE FROM OVENS.

AP LID TION FILE HI 1-} 30'1903. N0 MODEL. P A D N i 6 SHEETS-SHEET 5.

Ellifllllllllllllmllillllfl PATENTED P315123, 1904.

APPLICATION FILED JUNE 30, 1903.

N0 MODEL.

6 SHEETS-SHEET 8.

wwglgazglm @z hforgays UNITED STATES] Patented February 23, 1904.

A E T OFFICE.-

' osnr n KERSHGENS, or oHARLERoI, rnnnsvnvlinnilip W MACHINE -F O R'DI SCHARGlNG QOKE FROM ovens.

' SPECIFICATION forming-"part of Le'ttersPat'ent Nd 753,142, dated February 23, 1904.

' application fiatimea10a To all whom itimttyicon 'cc'rni' H Be it known that I, JOSEPH Knnsnen vs, a citizen of the United States, residing at Charleroi, in the county of ashington and State of Pennsylvania, have inventedanew and useful Machine forDischarging Coke from Ovens, of which the following is a specification.

' This invention relates generally to machines for dischargingcoke'from the ovens in which it is made, and more particularly to machines adapted to travel upon tracks laid between parallel rows of oppositely disposed ovens,

from which coke maybe discharged simultaneously orseparately, as desired...

The object of the'invention is to produce an improved coke-pushing machine of the type specified in which the action will be simple and easily controlled and which'may be operated with a comparatively small expenditure of power. y

In describing the invention reference will be had to the accompanying drawings, forming a part of this specification, in which is illustrated one form of embodiment of the invention, the same being shown in connection with two rows .of oppositely-disposed cokeovens, the ovens in one row being of a modern type and those in the other row being of an older type and the heads of the pusher-bars 3 pf the machine being made of difierent forms to correspond to the types of ovens shown.

In the drawings, Figure 1 is a view in elevation from the rear of one endof the apparatus, a coke-oven being shown in section in its normal position in relation to the machine. Fig. 1 is a view similar to Fig. 1 showing the other end of the machine in elevation from the rear and showing in section a difierent form of coke-oven in normal position in relation to the machine. Fig. 2 is a plan View of the end of the machine shown in Fig.

1 with a plurality of cokeovens indicated diagramatically in relative position to that end of the machine. Fig. 2 is a plan View of the end of the machine not shown in Fig. 2, coke-ovens of a different type from those shown in Fig. 2 being shown diagrammatically in relation to the end of the machine. Fig. 3 is an end View of the machine from the right, the view being on larger scale than the pre- 7 are 1a. 163,759,- on medal.)

ceding views. 7 Fig.4; is adetail view in elevation of one of the levers for controlling the V eratingone of the vpusher bars', showing the means bywh'ich motion is imparted from the cylinder to thebrank-shaftand the valve for controlling the direction of movement. I

. In the, drawings corresponding parts are designated by the, same characters of reference throughout the several views in which they pp Referring now to the drawings, Q O 0 represent ovens of the older type, and 0'0 0 represent ovens'of more modern type. Tracks ,7

T, preferably comprising six rails, are laid between the rows of coke-ovens, and upon these tracks the machineis propelled by means of mechanism formingfa part of the machine and comprising the elements presently'to be described. p I

The machine consistsfof a frame F, which may be of any preferred form, but which is preferably made of iron beams of the form shown and which must be strongly constructed to withstand the strains to which it is subjected in the operation of the machine. The frame is supported by a plurality of wheels W, each of which is provided on its periphery with a pair of flanges, between which is formed a circumferential groove for engagement with one of the rails of the track. The wheels at the front of the frame are merely supportingwheels; but those at the rear areall rigidly attached toa shaft S, to which power is transmitted when it is desired to propelthe machine forward along the rails. l

'On the front partof' the frame of themachine is mounted. a steam-generator G, compris'i'nga boiler and fire-box of any preferred form and having supported beneath it a watersupply tank. The steam-generator Gr supplies steam to cylinders in which operate pistons from which power is supplied to' mechanism for actuating the push-bars in the manner presently to be described, and'the steamcylinders furnish the power used to propel the machine forward when theepush-bar's are retracted after discharging coke from the ovens.

Arranged to reciprocate on the frame F are two push-bars 1 1, each of which is supported upon a plurality of alined rolls to diminish the friction of operation thereof. Each bar 1 rests upon a plurality of rolls, preferably eight in number, of which the two in the middle of the series are of smaller diameter than the remainder and are designated by the numeral 2. The rolls on either side of the rolls 2 of the series and designated 3 are of larger diameter and are provided with flanges sufiiciently wide to formdeep circumferential grooves, in which the push-bars are securely held against lateral movement. At one end of each series of rolls supporting one of the push-bars is a roll 4, larger than the rolls 3 and placed immediately beneath the gear, from which motion is imparted to the push-bar. Rolls 4 are provided to give a sufficiently firm support to the pushbars to prevent them from yielding under the strain imposed thereon by the gears for operating them and are made of large size to diminish the wear occasioned by the friction and heavy pressure of the push-bars thereon. Each of the push-bars 1 is provided on its upper surface with a plurality of cogged plates 1, securely bolted to the push-bars and forming a rack for the engagement of gears by means of which the push-bars are operated.

At one end each of the push bars is provided with a pusher-head 5, consisting of a frame 6 and aplurality of rolls 7, two of which are mounted at the bottom of the head to revolve in a vertical plane and two of which are supported in brackets at the sides of the head to rotate in a horizontal plane and which serve by contact with the sides of the oven to hold the pusher-head in proper relation thereto. As additional means for retaining each of the push-bars in proper alinement a pair of rolls 8 are provided in brackets on opposite sides of each pusher-head 5 to engage therewith, -as best seen in Fig. 2.

Supported upon a bed-plate above each of the push-bars 1 is a cylinder 9 of ordinary type, having at the rear side thereof a steamchest 10, in which reciprocates a slide-valve 11. Steam is led into each of the steamchests 1O bya steam-pipe 12, leading from the steam-dome 13 of the generator G. Mounted for reciprocation in each of the cylinders is a piston-head 14, rigidly attached, as usual, to a piston-rod 15, which slides in a stufiing-box 16 at the end of the cylinder and which has the free end thereof supported in a guide 17. Each of the pistons has connected therewith approximately midway between the ends the bifurcated end of a connecting-rod 18, the other end of which engages a crank-shaft 19, mounted in bearing-blocks 20 upon two of the transverse beams of the frame. Each crankshaft 19 bears at the forward end thereof a fly-wheel 21 and also carries a small gearwheel or pinion 22, which is in mesh with a large gear 23] upon a short shaft 24, parallel to the crank-shaft 19. Each shaft24- is provided with a small gear 25, which is in mesh with the large gear 26, mounted on a shaft 27, and each shaft 27 also carries asmall gear 28, which is disposed above one of the pushbars 1 directly over its supporting-roll 4 and serves under conditions presently to be described to impart motion to the push-bar by engagement with the rack formed by the cogged plates 1 on the upper surface thereof.

The large gear 26 on each shaft 27 meshes with asmall gear 29 on ashaft 30, supported beneath the frame F in the plane of the driving-shaft S. Each shaft 30 also carries a bevel-gear 31, adapted to engage with a bevelgear 32, which is splined to the driving-shaft S and has fastened to the hub thereof a grooved collar 33, with which engages the bifurcated end of a lever 34, pivotally mounted on the under side of the frame F in suitable relation to the collar. The upper end of each lever 34 has pivotally attached thereto a connecting-rod 35, which is fastened at its other end to an operating-lever 36, pivotally supported on a short shaft 37, provided for that purpose on the frame F. By means of the operating-levers 36 the levers 34 may be rocked and the gears 32 shifted back and forth upon the driving-shaft S to throw said gears into and out of engagement with the gears 31. When either of the geras 32 is in mesh with the corresponding gear 31 the driving-shaft S will be rotated if steam is allowed to enter the cylinder 9, from which power is transmitted to gear 31, which has its corresponding gear 32 in .mesh therewith.

Each slide-valve 11 is operated by means of a valve-stem 38 of ordinary construction, which is bolted to the valve, as shown, and which slides in a stuffing-box 39 at the end of the steam-chest 10. Motion is imparted to the valve-stem 38 by a link 40, pivotally connected at one end to valve 11 and at the other to the inner end of a lever 41, which is mounted on a stud in the shorter arm of a bell-crank lever 42, which is mounted on the shaft 37. The lever 41 is rocked back and forth by a pitman 43, pivotally connected at one end to the lever 41 and at the other end secured to a strap 44, which encircles an eccentric disk 45 on the crank-shaft 19. The eccentric disk 45 is preferably rabbeted at the margin of each side face, and the strap is provided with corresponding internal flanges to engage with said rabbets to prevent the slipping of the strap on the eccentric. The bell-crank lever 42, which carries the stud upon which lever 41 is mounted, is provided with the locking-dog 46, which is adapted to engage with notches formed in a segmental rack 47 and serves to control the entry of steam into the cylinder 9 on the side of the machine upon which it is located. When bell-crank lever 42 is in the chine in one direction. When the hell-crank lever 42 is depressed from the position shownin solid lines in Fig. 4, the lever 41 will be .piston in the opposite direction.

position shown in solid lines in Fig. 4, the movement of the pitman 3, with the rotation of the eccentric 45, is not suflicient to move the flange 11 far enough in either direction to admit steam to the cylinder 9. Consequently when the bell-crank 42 is in the position referred to the piston is not caused to reciprocate within the cylinder, and no motion is imparted to the crank-shaft 19 and the mechanism operated therefrom.

If the bell-crank 42 is tilted so as to raise the free end thereof, the movement of the slide-valve l1, occasioned by the rotation of the eccentric disk 45, will uncover one of the entry-ports of the cylinder and allow steam to enter and act upon the piston to drive the mashifted in position so that the slide-valve 11 will be reciprocated to open and close the other port of entry into the cylinder, and steam will also be allowed to enter to reciprocate the lever 42 serves as a lever for starting and stopping the machine and for-revers1ng the direction of movement of the mechanism thereofj On each of the shafts 19, in front of they crank portion thereof, is mounted an eccentric disk 18, around which is secured a strap 49, bearing a pitman 50, which is pivotally connected at its other end to 'a piston 51, operat-' ing in a small cylinder 52, from which extends a pipe 53, which leads to afeed-pump 54L, operated by compressed air, the air being compressed by the reciprocation of the pistons 51 in cylinders 52.

Over each of the push-bars 1 at the end of the cylinder 9 from which the push-bar is driven is mounted in supporting-links 55 a lever 56, having the lower end terminating in a dog 57 for engagement with the rack on the upper surface of the push-bar beneath it. The lever 55 forms the means whereby after the retraction of one of the push-bars to its full extent the push-bar may be forced forward suiiiciently to bring the rack on the upper surface thereof into engagement with the gear 28 on the shaft 27, by means of which the push-bar is forced into one of the cokeovens. As may be seen in Fig. 2, the cogged plates 1 do not extend entirely to the pusherhead 5 at the end of the rack-bar, but terminate a short distance therefrom, so that when a push-bar is retracted from one of the cokeovens it is unnecessary to stop the motion of the gear 28 at the instant that the push-bar has been retracted to the proper distance. Instead of its being necessary to stop the movement of the gear 2-8 the retraction of the push-bar causes the disengagement of the gear with the rack on the upper surface of the push-bar, and consequently renders the gear 28 no longer operative upon the push-bar to retract it further. After a push-bar has been Hence the i so far retracted that the rack on the upper surface thereof is no longer engaged by one of the gears 28 it is of course necessary to shift the push-bar outward sufliciently to bring the rack on its upper-surface into engagement with one of the gears 28, so that the push-bar,

driving-shaft S, and consequently the operator, if there bev only one, may control the movement of the machine forward alongthe tracks when handling the operating-lever of either cylinder. served that the two cylinders 9 on the crankshafts 19 are so arranged that both cannot be on a dead-center at the same time,and consequently if at the time the machine is stopped one of the pistons ison adead-center the machine may be set in motion from the other cylinder, and by means of the connections of the driving-shaft with the crank-shaft whose piston has, been stopped on a dead-center the crank-shaft and piston so stopped may be shifted in position to take the piston off the dead-center. 1

In the operation of the machine it is desir able if coke is to be pushed from the ovens in both rows to have two operators to control the aetionof the push-bars, one operator taking his station adjacent to the controlling-la, ver for each cylinder and manipulating the controlling-lever to cause the push-bar upon his side of themachine to be advanced and retracted, as occasion requires.

In order to avoid interference with each other in thecontrol of the forward movement of the machine, the operator upon one side of the machine when two operators are handling it will throw the lever 36 so as to shift It will also have-been obthe gear 32 upon his side of the machine out 4 of mesh with its corresponding gear 31 and will leave the control of the forward movement of the machine to the other operator. It is of course presumed that the machine isoperated in the manner explained, with the ovens in the two rows placed so that when the push-bar upon one side of the machine is advanced to discharge coke from an oven in one row the push-bar on the other side of the machine may be operated to discharge coke from an oven in the other row. In case the ovens in the two rows are not properly arranged to permit such action of the machine it will be necessary to discharge the coke alternately from an oven in each row and for the operator upon one side of the machine after the discharge of the coke from an oven in the row upon which he is-operating to retract the push-bar upon his side of the machine and throw the gear 32 out of mesh with gear 31 on his side of the machine, so that the operator upon the other side may control the advance of the machine to bring the pusher-rod upon his side into position for operation upon an oven in the row on his side.

Vhile I have described and illustrated the preferred form of embodiment of my invention, it is to be understood that various changes in the form, proportions, and exact mode of assemblage of the elements may be made without departing from the spirit of the invention or sacrificing any of its advantages.

Having thus described the construction and operation of my invention, What I claim as new, and desire to secure by Letters Patent, is

1. In a machine for discharging coke from ovens, the combination with a supportingframe, of a push-bar arranged for reciprocation on said frame and adapted to be projected from the side of the frame, means for projecting said push-bar normally disengaged from the push-bar, and separate means for imparting initial movement to the push-bar to bring it into engagement with said projecting means.

2. In a machine for discharging coke from ovens, the combination with a supportingframe, of a push-bar slidably mounted on the frame and adapted to be projected at one side thereof, means on said frame for advancing and retracting said push-bar, said means being disengaged from said bar when the bar is retracted, and means for imparting initial projecting movement to the push-bar.

3.. In a machine fordischarging coke from ovens, the combination of a frame, a push-bar mounted for reciprocation on said frame and having a rack formed thereon, said rack terminating at a slight distance from the head of the push-bar, a gear adapted to engage said rack when the push-bar is advanced slightly, means for imparting movement to said gear, andseparate means for advancing said pushbar sufficiently to bring the rack thereon into engagement with said gear.

4. In a machine for discharging coke from ovens, a frame, a push-bar mounted'for reciprocation on said frame and having a rack thereon terminating a slight distance from the head of the push-bar, a gear adapted to engage said rack when the push-bar is slightly advanced, a motor for imparting movement to said gear, and a pivoted lever having a dog adapted to engage the rack on the push-bar, whereby said push-bar may be advanced sufficiently to cause the rack thereon to be engaged by said gear.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in the presence of two Witnesses.

J OS. KERSHGENS.

Witnesses J 0s. KERscHeENs, J r., ED. ARMSTRONG. 

